[src/trunk]: src/sys/netinet Fix the assert in the previous commit.

[rmind <rmind%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b4bf9cf4ed5f
branches:  trunk
changeset: 329396:b4bf9cf4ed5f
user:      rmind <rmind%NetBSD.org@localhost>
date:      Fri May 23 00:02:14 2014 +0000

description:
Fix the assert in the previous commit.

diffstat:

 sys/netinet/ip_output.c |  10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diffs (38 lines):

diff -r 362367b850a8 -r b4bf9cf4ed5f sys/netinet/ip_output.c
--- a/sys/netinet/ip_output.c   Thu May 22 23:42:53 2014 +0000
+++ b/sys/netinet/ip_output.c   Fri May 23 00:02:14 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ip_output.c,v 1.226 2014/05/22 23:42:53 rmind Exp $    */
+/*     $NetBSD: ip_output.c,v 1.227 2014/05/23 00:02:14 rmind Exp $    */
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -91,7 +91,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ip_output.c,v 1.226 2014/05/22 23:42:53 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ip_output.c,v 1.227 2014/05/23 00:02:14 rmind Exp $");
 
 #include "opt_inet.h"
 #include "opt_ipsec.h"
@@ -191,7 +191,6 @@
 
        MCLAIM(m, &ip_tx_mowner);
 
-       KASSERT(solocked(so));
        KASSERT((m->m_flags & M_PKTHDR) != 0);
        KASSERT((m->m_pkthdr.csum_flags & (M_CSUM_TCPv6|M_CSUM_UDPv6)) == 0);
        KASSERT((m->m_pkthdr.csum_flags & (M_CSUM_TCPv4|M_CSUM_UDPv4)) !=
@@ -571,7 +570,10 @@
         */
        if (ntohs(ip->ip_off) & IP_DF) {
                if (flags & IP_RETURNMTU) {
-                       struct inpcb *inp = sotoinpcb(so);
+                       struct inpcb *inp;
+
+                       KASSERT(so && solocked(so));
+                       inp = sotoinpcb(so);
                        inp->inp_errormtu = mtu;
                }
                error = EMSGSIZE;